欺诈猎人

A |     

    Shi Jianyang (L) and his grandfather check the growth of crops on a farmland near a forest area along the Maowusu Desert in northwest China's Shaanxi Province in 2026.(Xinhua)A drone sweeps above the pine forest, sending images of the woods to a screen below. Under the trees stands Shi Jianyang whose grandfather and hundreds of villagers came 40 years ago with shovels and saplings to stop advancing sand.
At 29, Shi belongs to a new generation of desert-control workers equipped with drones, machines and remote irrigation systems. An earth auger can now do in a day what once required about 200 laborers, while a single phone can control drip irrigation across more than 1,000 mu (about 66.67 hectares) of woodland.
For the older Shi's generation, the challenge was getting trees to survive in moving dunes. For the grandson, it is figuring out how to make those forests healthier and more resilient for decades to come.
Their story captures a broader shift in desert control along the southern edge of the Maowusu Desert in northwest China's Shaanxi Province: turning shifting sand into forest was only the beginning.
In 1986, Shi Guangyin, Shi Jianyang's grandfather, led more than 300 villagers into Langwosha, a sandy area in Dingbian County in Yulin City. He had raised 60,000 yuan (about 17,377 U.S. dollars at the time) by selling his family's 84 sheep and borrowing from relatives and banks to contract 3,500 mu of barren sandy land.
The early setbacks were severe. Strong winds destroyed about 90 percent of the saplings in the first year, and about 80 percent of those planted the following year failed to survive.
After seeking advice from forestry experts, Shi and the villagers laid out checkerboard-shaped barriers on windward slopes to hold the sand in place, then planted trees, shrubs and grasses within them. Sapling survival rates rose to about 80 percent.
Over the next four decades, Shi and those working alongside him treated 250,000 mu of sandy and saline-alkali land, with more than 53 million trees and shrubs taking root.
Greening the Maowusu Desert is part of a much larger national undertaking. It is one of the three major battlefronts of China's Three-North Shelterbelt Forest Program, a decades-long effort to curb desertification across northern China.
China has made desertification control a national ecological priority. Since 2023, the country has stepped up efforts under the program, with greater emphasis on systematic restoration and on consolidating earlier gains.
Decades after the first trees took root, a new challenge emerged. Poplars planted decades ago for their rapid growth began reaching the end of their life cycle, with large numbers of trees dying, while forests dominated by a single species were more vulnerable to pests and disease.
Making a forest was one challenge. Keeping it healthy for another generation is another.
Shi Jianyang grew up watching his grandfather and father work to hold back the sand. His father, Shi Zhanjun, spent years planting trees alongside Shi Guangyin before dying in a road accident in 2008 while transporting saplings.
As a boy, Shi Jianyang sometimes resented the work that had taken his father. He spent summer holidays in makeshift tents in the sandy land, eating meals gritty with sand. During planting season, his father would return home with painful blisters in his mouth.
Yet he eventually chose forestry himself.
After studying forestry technology in university, Shi returned home in 2020 and began working in desert control. His team, initially made up of just seven or eight young locals, later brought in university graduates with expertise in soil science, landscaping and pest control.
The younger generation faced a different question: not simply how to make trees survive, but how to make a forest last.
Shi and his team spent more than 40 days in a 5,000-mu woodland setting up sample plots, measuring rainfall, studying soil microorganisms and tracking tree lodging. They proposed renewing aging forests with better-planned forest structures and expanded the planting of Mongolian pine, a long-lived evergreen species that had been successfully tested locally.
To date, about 50,000 mu of land has been planted with Mongolian pine. As some trees fail to survive and require replacement in subsequent planting seasons, the cumulative area of planting operations has reached about 65,000 mu.
Technology has also changed daily work. Drones patrol forests from the air, mechanized equipment dig planting pits, and irrigation can be managed remotely. Sapling survival rates, which Shi Guangyin's generation had raised to about 80 percent through improved sand-control and planting methods, have climbed further to about 92 percent with greater mechanization and more precise management.
Shi said the changes can be felt on the ground. Strong sandstorms have become rare, winds are weaker inside the forest, and the ground stays moist longer after rain. Summer days beneath the trees also feel cooler, while morning dew appears more often. The changes lead him to rethink desert control.
His approach also reflects a broader effort in China's desert regions to link ecological restoration with local livelihoods, giving communities a stronger economic stake in protecting restored land.
With his grandfather's support, Shi and his team have been looking for ways to make better use of the restored land as ecological conditions improve. They have developed potato seedlings suited to sandy soil, promoted greenhouse farming, and set up a livestock cooperative, while increasingly growing potatoes, watermelons and peppers on land once prone to losing water and nutrients.
Shi has also turned to livestreaming e-commerce to market potatoes and other local farm produce, while developing forest-based health and leisure projects. More than 2,000 local residents have seen their incomes rise steadily as farming, livestock breeding and other businesses have developed.
"We used to fear the sand and keep away from it. Now we understand it and know how to make use of it," Shi Guangyin said. "Today, there are opportunities to make a living everywhere in this sandy land."
Across Yulin, forest coverage has risen from 1.8 percent in 1949 to 34.8 percent, while shifting dunes that once encroached on villages have been brought under control.
For Shi Jianyang, however, the green landscape is not proof that the work is finished. "Planting a tree is not difficult," he said. "The difficult part is looking after it for decades."
The grandfather generation learned how to stop the sand. The young generation is learning how to make what grew there last.
    Shi Jianyang (R) and his grandfather check tree growth in a forest area in Dingbian County in Yulin City, northwest China's Shaanxi Province in 2026. (Xinhua)
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B | 继华为和三星之后，有传言称苹果将在2019年推出至少一款三摄像头后向iPhone。该模型现在被认为是iPhone XS Max的继承者，甚至所谓的三摄像头渲染也浮出水面。从渲染图上可以看出，2019年的高端iPhone机型将有一个更大的摄像头模块，包括三个三角形排列的摄像头、一个LED闪光灯和一个麦克风。

C | 这种奇怪的设计在苹果的硬件中并不常见。问题是，iPhone上的第三台新相机能做什么？如果传言属实，iPhone上新推出的第三款相机将具有几个潜在的优势，包括先进的3D传感、增强的光学变焦、改进的低光性能和改进的照片质量，这通常得益于更多的光和颜色数据收集。先进的3D传感器苹果反复表示对增强现实技术的浓厚兴趣。Arkit的发布立即使数亿部iPhone和iPad能够使用增强现实技术，但苹果公司才刚刚在这一领域起步。第三款相机可以显著提高iPhone的三维空间识别能力。去年的一份报告显示，后传感器功能将比iPhoneX上的pre-truedepth系统更先进，并能在更多场景中增强现实应用。

D | 根据同一份报告，三个摄像头系统将能够实现立体成像，其中两个传感器将能够从不同角度捕捉单个物体的图像。

E | 然后将使用三角测量法来获取iPhone和对象之间的距离。

F | 早在2017年，彭博社就报道说，苹果计划在其iPhone上安装一个Post-3-D传感器，该传感器于2019年推出。但该报告称，当时苹果正在评估一种飞行时间法，这种方法可以计算激光从周围物体反射回来创建环境三维图像所需的时间。不管苹果采用什么方法，第三款相机无疑会提高iPhone的增强现实功能。这也为苹果AAR眼镜将于2020发布的谣言奠定了基础。

G | 增加第三台相机的光学变焦可能会使iPhone的光学变焦功能首次达到三倍。用户可以在取景器中缩放图像三次，而不是像数码变焦那样降低图像质量。相比之下，iPhone7 Plus、8 Plus、X、XS和Max具有两倍的光学变焦功能。

H | 华为的P20 Pro是首款配备后置三摄像头系统的智能手机，包括800万像素长焦距摄像头、4000万像素主摄像头和2000万黑白子摄像头，可实现三倍光学变焦。iPhone上的第三个摄像头（如果是传统传感器）将吸收额外的光线，以提高设备在低光场景中的性能。毫无疑问，苹果在iPhone拍照算法上投入了大量资金。例如，在最新的iPhone上，智能HDR模式允许照片具有更多的高光和阴影细节，而景深控制显著改善了肖像模式。Google的新夜视模式Pixel3和Pixel3XL设置了暗光照片的标准，但它通过机器学习根据图像内容选择正确的颜色。

I | 因此，在较暗的光线下拍摄的照片更亮，不需要照相机闪光灯。

J | 有了第三个摄像头和改进的机器学习功能，苹果可能能够在2019年发布的iPhone上实现与谷歌夜视模式相当的功能。